Diane Keaton's Boyfriend History: She Dated Warren Beatty, Woody Allen & Al Pacino

Diane Keaton, who has died at the age of 79, was a single woman until her death, although she did adopt two kids in her 50s named Dexter and Duke Keaton.

However, Keaton did have some high-profile boyfriends over the years. They included three very high-profile actors, and Keaton starred in classic movies with some of her boyfriends. According to People:

• Actor Warren Beatty was one of her high-profile boyfriends.

• Keaton dated Woody Allen, with whom she also collaborated in classic movies, most notably Annie Hall.

• Al Pacino was also a boyfriend of Keaton's. She famously starred with him in The Godfather.

Keaton died on October 11, 2025, after an ambulance was called to her California home for a "person down," according to TMZ. However, her cause of death is not yet clear.

Diane Keaton Said She Had a 'Crush' on Al Pacino While Filming 'The Godfather'

Keaton opened up about her relationship with Pacino to People. She revealed that she had a "crush" on the actor when they filmed The Godfather together in 1971.

“I was mad for him. Charming, hilarious, a nonstop talker,” she revealed. “There was an aspect of him that was like a lost orphan, like this kind of crazy idiot savant. And oh, gorgeous!”

But, according to People, he rejected her ultimatum to get married. “I worked hard on that one. I went about it in not a perfect way," she told the magazine.

She told Huffington Postof Pacino: "He was very appealing and the thing is, we kept running into each other because of work. Work brings people together; it's very helpful. … Maybe I need another job to find another unobtainable great."

Diane Keaton Dated Woody Allen

It's true that Keaton once dated director Woody Allen. In fact, they lived together for a time in New York, according to Page Six.

They met in 1969 during a Broadway production, and Allen wrote in a book that he considered Keaton “adorable, funny, totally original in style, real, fresh," Page Six reported.

Page Six reported that Keaton later downplayed the relationship with Allen, but she did defend him when he faced very public accusations.

Diane Keaton Called Warren Beatty 'So Complex & Charming'

Keaton also dated Warren Beatty, who had a string of famous lovers before marrying Annette Bening.

She starred with him in the movie Reds and said, according to People, “He is just a brilliant character. So complex and charming. He should have made more movies.”

According to the Huffington Post, Keaton described dating Beatty as "amazing," saying she once had a childhood crush on the actor.

Keaton told that publication that Beatty was "smart" and romantic.

"Yes. I was terrified of flying and once I had to fly from L.A. to New York, so he took me to the airport and said, 'I'll walk you onto the plane,'" she recalled. "Then he sat down with me and the plane took off and he was still holding my hand. We landed and he kissed me goodbye and took the next plane back to L.A. Pretty cool."

Related: